1. Information on accessing digital images of IHC stains and the
manual requisition form can be accessed through this website:
www.mayomedicallaboratories.com/test-info/ihc/index.html

2. Clients ordering stains using a manual requisition form will
not have access to digital images.

3. Clients wishing to access digital images must place the order
for IHC stains electronically. Information regarding digital
imaging can be accessed through this website:
www.mayomedicallaboratories.com/test-info/ihc/faq.html

Useful For

Aids in the identification of cells expressing
high-molecular-weight cytokeratin

Reflex Tests

Test ID

Reporting Name

Available Separately

Always Performed

IHTOI

IHC Initial, Tech Only

No

No

IHTOA

IHC Additional, Tech Only

No

No

Reporting Name

Keratin 5/6 IHC, Tech Only

Specimen Type

TECHONLY

Specimen Stability Information

Specimen Type

Temperature

Time

TECHONLY

Ambient (preferred)

Refrigerated

Clinical Information

Keratin 5/6 is a cocktail of high-molecular-weight keratins.
Squamous epithelium of normal skin stains in a cytoplasmic pattern
with Keratin 5/6. Keratin 5/6 is usually positive in mesotheliomas,
and negative in adenocarcinomas, making it useful in separating
mesotheliomas from pulmonary adenocarcinomas.

Day(s) and Time(s) Performed

Monday through Friday

Analytic Time

1 day

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test has been cleared or approved by the U.S. Food and Drug
Administration and is used per manufacturer's instructions.
Performance characteristics were verified by Mayo Clinic in a
manner consistent with CLIA requirements.